#91103F
Closest named color: Red Wine (#8C0034). oklch(42.8% 0.161 7.5), rgb(145, 16, 63).
Aa
White text reads best on this color (8.93:1).
About this color
#91103F is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.161 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Red Wine (#8C0034), ΔE 0.021 away. White text reads best on it, at 8.93:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Red Wine (#8C0034) |
| Black text | 2.34:1 |
| White text | 8.93:1 |
Values
| HEX | #91103F |
| RGB | rgb(145, 16, 63) |
| HSL | hsl(338, 80%, 32%) |
| OKLCH | oklch(42.8% 0.161 7.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #91103F | 8.93:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #91103F | 2.34:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #91103F text on white | 8.93:1 | AAA | Lc 88.7 | Fine for body text |
| #91103F text on black | 2.34:1 | Fails | Lc -13.5 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E6
oklch(93.6% 0.027 9)
-
Step 200
200
#F9CBD3
oklch(88.4% 0.053 6.5)
-
Step 300
300
#F6A7B5
oklch(80.9% 0.095 7.8)
-
Step 400
400
#ED748F
oklch(70.7% 0.151 7.7)
-
Step 500
500
#E34874
oklch(63.1% 0.193 7.5)
-
Step 600
600
#CE1C5D
oklch(55.5% 0.209 7.4)
-
Step 700
700
#B2044C
oklch(49.1% 0.195 7.6)
-
Step 800
800 (this color)
#91103F
oklch(42.8% 0.161 7.5)
-
Step 900
900
#741935
oklch(37.6% 0.126 7.6)
-
Step 950
950
#45111F
oklch(27.1% 0.08 8)
#91103F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #373940 | 0.183 |
| Deuteranopia (no green cones) | #58523C | 0.164 |
| Tritanopia (no blue cones) | #9F0027 | 0.043 |
| Achromatopsia (no color) | #494949 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91103F
#91103F
oklch(42.8% 0.161 7.5)
- #005C56
#005C56
oklch(42.8% 0.075 187.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #91103F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Wine #8C0034 ΔE 0.021
- Purple Red #990147 ΔE 0.022
- Berry #990F4B ΔE 0.025
- Mulberry #920A4E ΔE 0.026
- Cranberry #9E003A ΔE 0.027
- Red Purple #820747 ΔE 0.041
- Wine #80013F ΔE 0.044
- Dark Fuchsia #9D0759 ΔE 0.048
Use #91103F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.